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| All Small Parts (205) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3019-220 | 3019-220 Nose Bushing — Land Rover Discovery, 20mm x 36mmThe nose bushing… Show more (+) 3019-220 Nose Bushing — Land Rover Discovery, 20mm x 36mmThe nose bushing on a Land Rover Discovery driveshaft is the rubber-bonded sleeve that mounts the center stub shaft into the front driveshaft’s rear section. When this bushing fails, the center stub shaft develops radial play, creating a clunking noise during direction changes and low-speed maneuvering — often misdiagnosed as a differential or transfer case issue on the Discovery.SpecValueSKU3019-220Inside diameter20mmOutside diameter36mmApplicationLand Rover DiscoveryInspect the companion stub shaft for fretting wear before pressing the new 3019-220 into position. A worn shaft journal reduces the effective interference fit of the new bushing. If the shaft shows polishing or material loss at the bushing contact area, the shaft must be replaced or the new bushing will have insufficient retention force. Show less (-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | IC33 | IC33 — 2.496″ ID x 3.5″ OD Increase Bushing 0.502-inch wall… Show more (+) IC33 — 2.496″ ID x 3.5″ OD Increase Bushing 0.502-inch wall per side for heavy-duty press-fit structural applications.The IC33 has the largest wall thickness of the IC-series bushings at approximately 0.502 inches per side. This substantial wall is necessary because the 3.5-inch OD must carry significant hoop stress in the press fit, and the larger-diameter applications (3.5-inch yoke bores) operate at higher torque levels where the bushing must contribute structural strength rather than just fill a gap.The 2.496-inch inner bore is close to 63.4mm metric tube OD — found in European heavy-duty commercial vehicle driveshafts. The IC33 allows use of a 3.5-inch bore yoke on a metric-OD tube. Confirm the actual tube OD with a micrometer — nominal metric dimensions can vary by ±0.5mm between manufacturers, which is significant for a press fit application. Show less (-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 5361 | The 5361 increase bushing at 2.281-inch ID and 3.0-inch OD provides 0.359… Show more (+) The 5361 increase bushing at 2.281-inch ID and 3.0-inch OD provides 0.359 inch of wall per side — enough to be a structural increase bushing capable of carrying press-fit load through the yoke bore. The 0.875-inch length provides adequate engagement depth for a solid press fit without excessive overhang into the tube bore.SKU5361Inside diameter2.281″Outside diameter3.0″Length0.875″The 2.281-inch inner bore corresponds to an approximately 57.9mm tube OD — common in certain European and Asian commercial vehicle applications. When building or adapting a driveshaft for an import application with this tube size to a standard 3.0-inch bore yoke, the 5361 is the correct bushing without additional shimming. Show less (-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | IC18 | IC18 — Metric-to-Standard Tube Increase Bushing, Honda CRV ApplicationThe IC18 is specifically… Show more (+) IC18 — Metric-to-Standard Tube Increase Bushing, Honda CRV ApplicationThe IC18 is specifically noted for Honda CRV applications, where the OEM driveshaft uses metric tube dimensions that do not directly accept inch-specification yokes. This is a common problem in import vehicle driveshaft service — the OEM tube OD falls between standard inch sizes, and a direct yoke-to-tube weld leaves excessive clearance. The IC18 fills that gap, allowing the use of an inch-specification yoke on the metric Honda CRV tube.SKU: IC18Application: Honda CRV (metric-to-standard tube conversion)Function: Adapts metric tube OD to inch-spec yoke boreWhen rebuilding import driveshafts with OEM-spec tube, the IC18 allows sourcing of domestic inch-spec yokes rather than requiring OEM-sourced metric yokes. Confirm the outer diameter is correct for the specific yoke bore before pressing — Honda CRV model years vary in exact tube OD, and the tolerance must be verified rather than assumed. Show less (-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | IC20 | IC20 — 1.424″ ID x 1.819″ OD Increase Bushing 0.197-inch wall… Show more (+) IC20 — 1.424″ ID x 1.819″ OD Increase Bushing 0.197-inch wall thickness per side for structural press-fit applications.The IC20 has a meaningful wall thickness of approximately 0.197 inches per side (OD 1.819″ minus ID 1.424″ = 0.395″ total wall, divided by 2). This is a structural increase bushing — it carries hoop stress from the press fit and contributes to the weld joint strength. The 1.424-inch inner bore corresponds to approximately 36mm metric tube, while the 1.819-inch OD fits a yoke bore sized for roughly 46mm tube.Applications: metric-to-inch driveshaft fabrication, adapter builds for import vehicles, and custom driveshaft fabrication where tube OD and yoke bore are mismatched by roughly 3/8 inch per side. Show less (-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | IC21 | The IC21 has nearly equal ID (2.127″) and OD (2.133″) — a… Show more (+) The IC21 has nearly equal ID (2.127″) and OD (2.133″) — a wall thickness of only 0.003 inches. This is not a structural load-bearing bushing; it is a thin-wall shim sleeve used to take up a small dimensional gap between a metric tube and an inch-dimension bore (or vice versa). A 2.127-inch OD tube in a 2.133-inch bore has 0.003-inch radial clearance per side — the IC21 fills that gap for a snug fit before welding.SKUIC21Inside diameter2.127″ (~54mm)Outside diameter2.133″Wall~0.003″ per sideThis type of thin shim sleeve is used in metric-to-inch driveshaft conversions where the metric tube OD falls just inside an inch-specification yoke bore. The sleeve is not intended to carry structural shear loads independently — the surrounding weld is the primary load path. Show less (-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | IC22 | IC22 — Thin-Wall Increase Bushing, 2.433 ID x 2.368 ODThe IC22 has… Show more (+) IC22 — Thin-Wall Increase Bushing, 2.433 ID x 2.368 ODThe IC22 has an unusual characteristic: the inside diameter (2.433 inches) is larger than the outside diameter (2.368 inches) as listed. This suggests either a data formatting issue or that IC22 is a reducing bushing — a sleeve that adapts a larger bore to a smaller tube OD rather than a standard increase bushing. Verify actual dimensions on receipt; if the ID is indeed larger than the OD, this is not a standard press-fit bushing application.In general increase bushing applications, the OD must be larger than ID by the sum of the two wall thicknesses to provide the working wall for the press fit and structural connection. Contact the supplier to confirm IC22 dimensions for your specific application before ordering.SKU: IC22Listed ID: 2.433″Listed OD: 2.368″Type: Verify orientation — may be a reducing adapter Show less (-) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | IC70 | The IC70 shares the 1.84-inch ID, 2.5-inch OD, and 0.75-inch length with… Show more (+) The IC70 shares the 1.84-inch ID, 2.5-inch OD, and 0.75-inch length with the IC71. The different part numbers indicate these are calibrated for specific fit tolerances or material specifications in different application contexts. When the original bushing is identified as IC70, use IC70 — the tolerance difference between IC70 and IC71 may be sufficient to affect the press fit quality.SKU: IC70Inside diameter: 1.84″Outside diameter: 2.5″Length: 0.75″Related: IC71 (same nominal dims)Press fit installation of increase bushings requires a hydraulic or arbor press — driving with a hammer creates uneven seating and can distort the bushing, causing the bore to go out-of-round. Check bore concentricity with a dial indicator after pressing if the application requires tight runout tolerance. Show less (-) | From Tube: 2-083 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | IC71 | IC71 Increase Bushing — 1.84″ ID x 2.5″ ODThe IC71 is a… Show more (+) IC71 Increase Bushing — 1.84″ ID x 2.5″ ODThe IC71 is a smaller-format increase bushing at 1.84-inch inner diameter and 2.5-inch outer diameter, with a 0.75-inch working length. This compact bushing is used in yoke bores sized for 2.5-inch tube when the tube being installed has a 1.84-inch bore (corresponding to a smaller OD tube). The short 0.75-inch length is appropriate for shallow yoke bores.SKUIC71Inside diameter1.84″Outside diameter2.5″Length0.75″Note that IC70 and IC71 share the same 1.84″ ID and 2.5″ OD dimensions. The difference between these two parts is likely a length, wall tolerance, or surface finish variation for different application depth requirements. Confirm the exact part specification needed for your yoke bore depth. Show less (-) | From Tube: 2-083 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | T300-125-083 | The T300-125-083 is an increase bushing for 3.0-inch outer diameter tube with… Show more (+) The T300-125-083 is an increase bushing for 3.0-inch outer diameter tube with 0.083-inch wall. The 3.0 x 0.083 tube specification is one of the most common driveshaft tube configurations used on light trucks and vans, so this bushing is among the most frequently needed in the T-series increase bushing range.SKU: T300-125-083Outer diameter: 3.0″Tube specification: 3.000 x 0.083″ wallLength: 3″When using an increase bushing, ensure the weld preparation on the tube end is flat and square. The bushing provides the bore alignment — but the weld joint at the bushing shoulder still requires proper fit-up for a sound structural weld. A gap of more than 1/16 inch at the tube-to-bushing shoulder joint requires a filler pass before the perimeter weld. Show less (-) | From Tube: 3-083 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | T350-125-083 | T350-125-083 — 3.5 OD Increase Bushing for 0.083 Wall TubeThe T350-125-083 and… Show more (+) T350-125-083 — 3.5 OD Increase Bushing for 0.083 Wall TubeThe T350-125-083 and T350-125-125 share a 3.5-inch outer diameter but differ in inner bore — the -083 variant is bored for 3.5 x 0.083 wall tube (thinner wall) while the -125 variant is for 3.5 x 0.125 wall (heavier wall). The thinner-wall tube has a larger inner diameter for the same OD, so the bushing inner bore must be correspondingly larger.SpecT350-125-083T350-125-125Outer diameter3.5″3.5″Wall thickness0.083″0.125″Length3″3″Selecting the wrong bushing variant — -083 instead of -125 — results in a tube that seats too deep in the bore (excessive interference fit) or a tube with visible gap at the yoke face. Both conditions weaken the weld joint. Always specify both tube OD and wall thickness when ordering increase bushings. Show less (-) | From Tube: 35-083 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | T350-125-125 | Increase bushings like the T350-125-125 solve the problem of tube-to-yoke diameter mismatch… Show more (+) Increase bushings like the T350-125-125 solve the problem of tube-to-yoke diameter mismatch. When a yoke is bored for a smaller tube than what the application requires, an increase bushing is pressed into the yoke bore, providing the correct smaller inner bore for the tube while the bushing’s outer diameter fills the yoke bore. The T350-125-125 has a 3.5-inch outer diameter and is designed for 3.5 x 0.125 wall tube, with 3-inch working length.SKUT350-125-125Outer diameter3.5″Tube specification3.5 x 0.125″ wallLength3″Press fit is critical — the bushing must be an interference fit in the yoke bore to prevent rotation under torque. Confirm the yoke bore matches the bushing OD tolerance before pressing. A slip fit is unacceptable; the bushing will spin and destroy both the yoke bore and the bushing under high-torque cycling. Show less (-) | From Tube: 35-125 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 16-74-11 | 16-74-11 Driveshaft Nut — 1.000-20 UNF ThreadThe 16-74-11 covers the 1.000-20 UNF… Show more (+) 16-74-11 Driveshaft Nut — 1.000-20 UNF ThreadThe 16-74-11 covers the 1.000-20 UNF thread size — the step between the smaller N16-74-101 and the larger 1.250-18 nuts in the driveshaft hardware range. This thread is found on mid-size transmission output shafts and some companion flange retaining bolts on light-to-medium applications. The 1.5-inch hex and 0.5-inch thickness are standard proportions for this thread size.SpecValueSKU16-74-11Thread1.000-20 UNFHex1.5″Thickness0.5″Cross-reference: 16-74-101 (same thread, slightly different specification). Confirm the exact part number from the original hardware or transmission service manual before ordering. The 1.000-20 thread is correct — do not confuse with 1.000-14 UNC coarse thread nuts that will engage but strip prematurely. Show less (-) | Hex: 1.5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 20-74-91 | The 20-74-91 is a standard (non-prevailing-torque) hex nut at 1.250-18 UNF, functionally… Show more (+) The 20-74-91 is a standard (non-prevailing-torque) hex nut at 1.250-18 UNF, functionally similar to 231502 and N231502. Used where the transmission output shaft is threaded for the slip yoke retaining nut. The 1.625-inch hex is the standard for this thread size across the Spicer, Neapco, and aftermarket families.SKU20-74-91Thread1.250-18 UNFHex1.625″Thickness0.63″For installations requiring a cotter pin, confirm the transmission shaft has a castle or slotted nut groove configuration. If a cotter pin is required for the application but this standard hex nut is being used, the assembly is not correctly secured — use a castle nut (NE or similar) with a cotter pin instead of relying on the plain nut torque alone. Show less (-) | Hex: 1.625 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 231421-2 | 231421-2 — Smallest U-Bolt Nut in 231421 Series 5/16-24 UNF thread… Show more (+) 231421-2 — Smallest U-Bolt Nut in 231421 Series 5/16-24 UNF thread for the lightest driveshaft U-joint bearing plate applications.The 231421-2 at 5/16-24 UNF represents the lower end of the U-bolt nut range. Applications at this size include very light-duty 1210 series U-joints in passenger cars and imported compact trucks. Handle with care — at 5/16 thread, the U-bolt is susceptible to overtorque damage. Never use an impact wrench to install these nuts; 6-8 ft-lb is the typical maximum torque.Cross-reference: Spicer 231421-2. When the complete set of bearing plate hardware is lost or worn, source the full set (nuts and U-bolts) rather than mixing components of unknown service history. Show less (-) | Hex: 0.5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 231421-3 | 231421-3 U-Bolt Nut — 3/8-24 UNF ThreadThe 231421-3 at 3/8-24 UNF is… Show more (+) 231421-3 U-Bolt Nut — 3/8-24 UNF ThreadThe 231421-3 at 3/8-24 UNF is the lightest standard U-bolt nut in the 231421 family above the 5/16 size. This thread size is found on the smallest driveshaft applications — compact passenger cars, rear-wheel-drive vans with 1210 series drivelines, and some import vehicles. The 9/16-inch hex is the standard socket for 3/8 fasteners in fine thread.SKU231421-3Thread0.375-24 UNFHex0.562″ (9/16″)Thickness0.328″Cross-referenceSpicer 231421-3At this thread size, the torque specification is low — typically 8-12 ft-lb for 3/8-24 bearing plate nuts. Using an impact wrench at full power will easily strip or break the U-bolt at these torques. Use a torque wrench for final tightening. Show less (-) | Hex: 562 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 231421-4 | The 231421-4 covers 7/16-20 UNF U-bolt applications — found on smaller Spicer… Show more (+) The 231421-4 covers 7/16-20 UNF U-bolt applications — found on smaller Spicer series joints and light-duty driveshaft applications where the bearing plate is retained by 7/16-inch U-bolts. The 0.688-inch hex (11/16″) is the standard wrench size for this bolt diameter.SKU: 231421-4Thread: 0.438-20 UNF (7/16-20)Hex: 0.688″ (11/16″)Thickness: 0.375″Cross-reference: Spicer 231421-4Light-duty driveshafts in compact trucks and passenger cars use smaller U-bolt hardware. If you find that the U-bolt nuts are loose during a vibration diagnosis, remove and inspect the U-bolt, bearing caps, and bearing plate before simply retorquing — a loose U-bolt often indicates a worn bearing cap or damaged plate that caused the joint to shift. Show less (-) | Hex: 688 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 231421-5 | 231421-5 U-Bolt Nut — 1/2-20 ThreadThe 231421-5 with 0.500-20 UNF thread is… Show more (+) 231421-5 U-Bolt Nut — 1/2-20 ThreadThe 231421-5 with 0.500-20 UNF thread is the mid-range size in the 231421 family. Half-inch fine thread U-bolt nuts are used on mid-range Spicer series joints (typically 1310 series) where the U-bolt diameter is 1/2 inch. Using the wrong thread size in a U-bolt application is dangerous — a 7/16-20 nut on a 1/2-20 bolt will appear to thread on but the engagement is only partial, leading to loss of clamp load under vibration.SpecValueSKU231421-5Thread0.500-20 UNFHex0.75″Thickness0.438″Cross-reference: Spicer 231421-5. Replace all four bearing plate nuts at the same time during U-joint service — mixing used and new nuts creates inconsistent preload across the U-joint cross. Show less (-) | Hex: 0.75 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 231421-7 | The 231421 series covers the standard U-bolt nut sizes used across Spicer… Show more (+) The 231421 series covers the standard U-bolt nut sizes used across Spicer U-joint assemblies. The 231421-7 at 5/8-18 UNF thread corresponds to U-bolt applications where the bearing plate retaining nuts are 5/8-18. This is the larger nut in the 231421 series — the series runs from .312-24 thread up to 5/8-18.SKU231421-7Thread0.625-18 UNFHex0.938″Thickness0.547″Cross-referenceSpicer 231421-7Always torque U-bolt nuts in a cross pattern to equalize bearing plate load. Torquing one side first allows the plate to tilt, preloading one pair of bearing caps more than the other. The correct torque for 5/8-18 U-bolt nuts on 1310/1330/1350 series is typically 14-18 ft-lb — confirm against the U-joint manufacturer’s specification. Show less (-) | Hex: 938 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 231502 | 231502 — Flanged Nut, 1.250-18 Thread The 2.125-inch flange diameter distributes… Show more (+) 231502 — Flanged Nut, 1.250-18 Thread The 2.125-inch flange diameter distributes clamp load over a larger bearing face than a standard hex nut.The 231502 is a flanged version of the standard 231502 hex nut family. The 2.125-inch flange diameter distributes the clamping force over a larger area than the 1.625-inch hex face — this reduces the risk of the nut embedding into soft materials or bridge-loading across a narrow contact. The flange also acts as a captive washer, eliminating a separate washer from the assembly.SKU: 231502Thread: 1.250-18 UNFHex: 1.625″Flange diameter: 2.125″Thickness: 0.63″Cross-reference: Spicer 231502 Show less (-) | Hex: 1.625 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
